Question about 2004 Pontiac Sunfire

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A/c and car over heating

When my car is in motion and a/c works fine and then when i have to stop the a/c blows and hot and the car starts of over heat.

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Sounds like your cooling fans are not working. look under the hood with the a/c on and check if your electric cooling fan s are working. they are mounted to the inside of the radiator.

Posted on Jul 10, 2010

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Have your radiator fan check out, fan has to be working to low the pressure in your a/c system and to keep the engine cool, with a/c on check voltage at fan motor harness, if there voltage replace fan motor.

Posted on Jul 10, 2010

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